create-traffic-mirror-session¶

Description¶

Creates a Traffic Mirror session.

A Traffic Mirror session actively copies packets from a Traffic Mirror source to a Traffic Mirror target. Create a filter, and then assign it to the session to define a subset of the traffic to mirror, for example all TCP traffic.

The Traffic Mirror source and the Traffic Mirror target (monitoring appliances) can be in the same VPC, or in a different VPC connected via VPC peering or a transit gateway.

By default, no traffic is mirrored. Use CreateTrafficMirrorFilter to create filter rules that specify the traffic to mirror.

Synopsis¶

  create-traffic-mirror-session
--network-interface-id <value>
--traffic-mirror-target-id <value>
--traffic-mirror-filter-id <value>
[--packet-length <value>]
--session-number <value>
[--virtual-network-id <value>]
[--description <value>]
[--tag-specifications <value>]
[--dry-run | --no-dry-run]
[--client-token <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]

Options¶

--network-interface-id (string)

The ID of the source network interface.

--traffic-mirror-target-id (string)

The ID of the Traffic Mirror target.

--traffic-mirror-filter-id (string)

The ID of the Traffic Mirror filter.

--packet-length (integer)

The number of bytes in each packet to mirror. These are bytes after the VXLAN header. Do not specify this parameter when you want to mirror the entire packet. To mirror a subset of the packet, set this to the length (in bytes) that you want to mirror. For example, if you set this value to 100, then the first 100 bytes that meet the filter criteria are copied to the target.

If you do not want to mirror the entire packet, use the PacketLength parameter to specify the number of bytes in each packet to mirror.

--session-number (integer)

The session number determines the order in which sessions are evaluated when an interface is used by multiple sessions. The first session with a matching filter is the one that mirrors the packets.

Valid values are 1-32766.

--virtual-network-id (integer)

The VXLAN ID for the Traffic Mirror session. For more information about the VXLAN protocol, see RFC 7348 . If you do not specify a VirtualNetworkId , an account-wide unique id is chosen at random.

--description (string)

The description of the Traffic Mirror session.

--tag-specifications (list)

The tags to assign to a Traffic Mirror session.

(structure)

The tags to apply to a resource when the resource is being created.

ResourceType -> (string)

The type of resource to tag. Currently, the resource types that support tagging on creation are: capacity-reservation | client-vpn-endpoint | dedicated-host | dhcp-options | export-image-task | export-instance-task | fleet | fpga-image | host-reservation | import-image-task | import-snapshot-task | instance | internet-gateway | ipv4pool-ec2 | ipv6pool-ec2 | key-pair | launch-template | placement-group | prefix-list | natgateway | network-acl | security-group | spot-fleet-request | spot-instances-request | snapshot | subnet | traffic-mirror-filter | traffic-mirror-session | traffic-mirror-target | transit-gateway | transit-gateway-attachment | transit-gateway-route-table | volume |vpc | vpc-endpoint (for interface and gateway endpoints) | vpc-endpoint-service (for AWS PrivateLink) | vpc-flow-log .

To tag a resource after it has been created, see CreateTags .

Tags -> (list)

The tags to apply to the resource.

(structure)

Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 255 Unicode characters.

Shorthand Syntax:

ResourceType=string,Tags=[{Key=string,Value=string},{Key=string,Value=string}] ...

JSON Syntax:

[
  {
    "ResourceType": "client-vpn-endpoint"|"customer-gateway"|"dedicated-host"|"dhcp-options"|"elastic-ip"|"elastic-gpu"|"export-image-task"|"export-instance-task"|"fleet"|"fpga-image"|"host-reservation"|"image"|"import-image-task"|"import-snapshot-task"|"instance"|"internet-gateway"|"key-pair"|"launch-template"|"local-gateway-route-table-vpc-association"|"natgateway"|"network-acl"|"network-interface"|"placement-group"|"reserved-instances"|"route-table"|"security-group"|"snapshot"|"spot-fleet-request"|"spot-instances-request"|"subnet"|"traffic-mirror-filter"|"traffic-mirror-session"|"traffic-mirror-target"|"transit-gateway"|"transit-gateway-attachment"|"transit-gateway-multicast-domain"|"transit-gateway-route-table"|"volume"|"vpc"|"vpc-peering-connection"|"vpn-connection"|"vpn-gateway"|"vpc-flow-log",
    "Tags": [
      {
        "Key": "string",
        "Value": "string"
      }
      ...
    ]
  }
  ...
]

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--client-token (string)

Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. For more information, see How to Ensure Idempotency .

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

--cli-auto-prompt (boolean) Automatically prompt for CLI input parameters.

See ‘aws help’ for descriptions of global parameters.

Examples¶

To create a Traffic Mirror Session

The following create-traffic-mirror-session command creates a traffic mirror sessions for the specified source and target for 25 bytes of the packet.

aws ec2 create-traffic-mirror-session \
    --description "example session" \
    --traffic-mirror-target-id tmt-07f75d8feeEXAMPLE \
    --network-interface-id eni-070203f901EXAMPLE \
    --session-number 1  \
    --packet-length 25 \
    --traffic-mirror-filter-id tmf-04812ff784EXAMPLE

Output:

{
    "TrafficMirrorSession": {
        "TrafficMirrorSessionId": "tms-08a33b1214EXAMPLE",
        "TrafficMirrorTargetId": "tmt-07f75d8feeEXAMPLE",
        "TrafficMirrorFilterId": "tmf-04812ff784EXAMPLE",
        "NetworkInterfaceId": "eni-070203f901EXAMPLE",
        "OwnerId": "111122223333",
        "PacketLength": 25,
        "SessionNumber": 1,
        "VirtualNetworkId": 7159709,
        "Description": "example session",
        "Tags": []
    },
    "ClientToken": "5236cffc-ee13-4a32-bb5b-388d9da09d96"
}

For more information, see Create a Traffic Mirror Session in the AWS Traffic Mirroring Guide.

Output¶

TrafficMirrorSession -> (structure)

Information about the Traffic Mirror session.

TrafficMirrorSessionId -> (string)

The ID for the Traffic Mirror session.

TrafficMirrorTargetId -> (string)

The ID of the Traffic Mirror target.

TrafficMirrorFilterId -> (string)

The ID of the Traffic Mirror filter.

NetworkInterfaceId -> (string)

The ID of the Traffic Mirror session’s network interface.

OwnerId -> (string)

The ID of the account that owns the Traffic Mirror session.

PacketLength -> (integer)

The number of bytes in each packet to mirror. These are the bytes after the VXLAN header. To mirror a subset, set this to the length (in bytes) to mirror. For example, if you set this value to 100, then the first 100 bytes that meet the filter criteria are copied to the target. Do not specify this parameter when you want to mirror the entire packet

SessionNumber -> (integer)

The session number determines the order in which sessions are evaluated when an interface is used by multiple sessions. The first session with a matching filter is the one that mirrors the packets.

Valid values are 1-32766.

VirtualNetworkId -> (integer)

The virtual network ID associated with the Traffic Mirror session.

Description -> (string)

The description of the Traffic Mirror session.

Tags -> (list)

The tags assigned to the Traffic Mirror session.

(structure)

Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 255 Unicode characters.

ClientToken -> (string)